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(No Model.) 2 Sheets-Sheet 1- J. M. BROWN 8; N. G. BOGGS. GORNIG E AND EAVES TROUGH BRAKE MAOHINE.'

No. 471,599. Patented Mar. '29, 1892.

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(No Model.) Q I 2 Sheath- Sheet J; M. BROWN 8: N; G. BOG'GS; OORNIGE AND EAVES THOUGH BRAKE MACHINE.

No. 471,599. Patented Man. 29, 1892;

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ilNrTE 'TATES ATENT OFFICE.

JOHN M. BROlVN AND NATHAN G. BOGGS, OFv HAMILTON, CANADA.

CORNICE AND EAVES-TROUGH BRAKE MACHINE.

SPECIFICATION forming part of Letters Patent No. 471,599, dated March 29, 1892.

Application filed August 3, 1891. Serial No. 401,451. (No model.)

To all whom, it may concern.-

Be it knownthat we, JOHN M. BROWN and NATHAN G. BOGG-S, citizens of Canada, residing at Hamilton, in the county of Ventworth,

' in the Province of Ontario, Dominion of Canada, have invented anew and useful Improvement in Cornice and Eaves-Tro ugh Brake Machines, of which the following is a specification.

Our invention relates to improvements in cornice and eaves-trough brake machines, in which the same is used principally for bending and curving tin, galvanized iron, and sheet metal for cornice purposes chiefly.

The principal feature and element in this invention consists in what is termed technically the fourth leaf, which is adjustable to various diameters and when in operation on its end centers or pivots brakes over the forms of the common cornice-brake machine, thus accomplishing or forming a circular bend over the various shapes and sizes of forms that may be attached and adjusted to the brake-machine proper.

The objects of our improvements are, first, to provide means to form curves and circular bends in eaves-troughs, cornices, and other articles of like nature; second, to afiord facilities for the proper adjustment of the fourth leaf to various distances or radii from its center toact independently of any other component part of the machine, yet at the same time in conjunction or combination with the same, and, third, to apply this fourth-leaf brake to the now-existing cornice-brake machines, pivoted on bearings of the front, bottom, or top leaves, for the purpose herein set forth, this third object being a very practical and important feature in this invention. We attain these objects by the .mechanism illustrated in the accompanying drawings, in which Figure l is a front elevation of a cornicebrake machine having our fourth leaf with its two end swivel attachments in position. Fig. 2 is an end elevation of the same, showing very fully a segment of a circle which forms a partof end swivels of fourth'leaf for the purpose of steadying and equalizing the ends of the same when in operation. Fig. 3 shows an end section of the front leaf and ing a form clamped in position.

fourth leaf through the broken line 0; 0c, hav- Fig. 4 is an enlarged end elevation of the front leaf, showing a clamp with its fulcrum and eccentric handle in working position. elevation of the same clamp detached; and Fig. 6 is a front elevation of the detached eccentric handle, also enlarged.

Similar letters refer to similar parts throughout the several views.

The metal frame or legs A and the front Fig. 5 is a front I leaf B, with its journals 0 in the bearingsaof said frame A, form the essential elements in an eaves-trough and cornice brake machine. On these two journals -0 of the front leaf B are the two end swivel attach ment-sD D,which for purposes of ready removal may be provided'with caps on their under side. These attachments D D are allowed to swivel when operating the fourth leaf, and theirlongrtudrnal rod 01 acts as a handle and also for steadying purposes. The fourth leaf E is connected and journaled to the said swivel end attachments by means of the longitudinal rod F, which passes through the three standards H of said leaf E and into its flanged bearings I, the said leaf E being adjusted to its proper radii from its center bearings by means of the vertical screws J which are screwed through the upper parts of said swivels, then pass downward through an opening in the swivels into, and secured to the flanged bearings I. Thus the weight of the leaf E is supported, adjusted, and regulated by the said screws J, which are operated by their hand-wheels K. This leaf E is also provided with a catch 6 at each. end to allow said leaf to be locked to a certain position in relation to said swivels. The leaf E can also be thrown back when not in use, so as not to interfere with the ordinary operation of the machine. When operating the said leaf E and in order to bring both ends of the same to a parallel position to the rest of the machine, the said swivels 'D are each provided with a circular segment L, cast to or attached thereto, and is allowed to engage with the toothed wheels m, which are journaled on the longitudinal. shaft 8, supported in the bearings n, which are placed on the upper part of the frame or legs A of the machine. The practicability of these two toothed segments, as hereinbefore mentioned, will be perceptible, because it will be noticed that when themachine is many times the length, as shown, it will be impossible for one end of the leaf E to gain or to at all be out of a parallel position to the machine on account of the pinion-wheels m, engaged in the segment L, being secured to their common longitudinal and parallel shaft 5.

The four small clamps which are attached to the front leaf B each consists of three piecesnamely, the clamp O, the T-headed bolt T, and the eccentric handle Uof which a set is seen very fully in Fig. 4 of the drawings in position tosecure various forms or shapes P, that are used forproducing various curves of work. The upper end of clampO is the part which secures the said forms to the front leaf bymeans of the eccentric handle, which when .the upper part is brought down the lower or eccentric part presses against the leaf, thus :bringing out the lower part of the clan1p,and:at the same time the upper part of said clamp presses against the forms or shapes P, the result being that the said formsare held in'a rigid position against the front leaf. The bolt T actsasa fulcrum for the clamp and is adjustable by means of curves requisite for building and other purposes. I

What we claim as our invention, and desire to secure by Letters Patent, is-

1. In a cornice-brake machine, the combination, with the frame A, of the swivel attachments D D, carrying the brake and connected together by means of the longitudinal steadyin -rod d and journaled at 0, each of said attachments provided with a toothed segment cast thereto or otherwise attached concentrically with said journals 0 and geared into pinions m, secured to their longitudinal shaft 8 in bearings n of frame A, thus producing a uniformity of action and equalizing of the work, substantially as specifiedand set forth.

2. .In a cornice-brake machine, the frames A, having bearings a andn, the front leaf 13, having journals c,-which work in said bearings cut-and provided with thedevice consisting of theclamp O, T-headed bolts T, and ec-' centric handle U for holding in position the various shapes and forms :on the front leaf, in combination with the swivel attachments D, connected byrod cl and provided with the adjustable vertical bearings I, regulated by the screws .J, the adjustable leaf E, gha'ving longitudinal rod-F passing through the upper partof the same, and the lock '6 for-fasteningtthe said leaf E toswivels D, all substantially as setv'forth.

JOHN M. BROWN. NATHAN G. BOGGS.

Witnesses:

W. E. BLANDFORD, J No. I). WILLIAMS. 

